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Is 1 the greatest common factor of 42 and 90?
No, it is 6. The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42. The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, and 90. The common factors are 1, 2, 3, and 6, so the greatest common factor is 6. You can also determine this by looking at the prime factors. The prime factors of 42 are 2, 3, and 7. The prime factors of 90 are 2, 3, 3, and 5. The prime factors they have in common are 2 and 3, so the greatest common factor is 2 x 3 = 6.
What number pair has a GCF of 3 and a LCM of 90?
The prime factorization of 90 is 2 x 3² x 5. There must be a 3 in one number and 3² in the other, and no other common prime factors; thus the number pair could be: 3 and 90 6 and 45 9 and 30 15 and 18
Common Factors of 15 and 90?
The common factors of 45 and 90 are 1,3,5
What is the least common multiple of 18 and 90?
The Least Common Multiple of 18 and 90 is 90.
Lcm of 18 and 30?
LCM is 90, which is the multiple of the highest power of prime factors in the given numbers (2 x 32 x 5).
The common prime factors of 19 and 90 are?
19 and 90 have no common prime factors.
What prime factor do 75 and 90 have in common?
The prime factors of 70 are 2, 5, and 7. The prime factors of 90 are 2, 3, 3, and 5. The prime factors that 70 and 90 have in common are 2 and 5. The greatest common factor of 70 and 90 is the product of the prime factors they have in common, so it is 2 x 5 = 10.
What is the greatest common factor of 36 and 90?
The greatest common factor of 36 and 90 is 18.The common factors of 36 and 90 are 1, 2, 3, 6, 9, and 18.Definition: A factor is a divisor - a number that will evenly divide into another number. The common factors of two or more numbers are all the factors that the numbers have in common. The greatest common factor of two or more numbers is the largest factor that the numbers have in common.Methods:One way to determine the common factors and greatest common factor is to find all the factors of the numbers and compare them.The factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, and 36.The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, and 90.The common factors are 1, 2, 3, 6, 9, and 18. Therefore, the greatest common factor is 18.The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.The prime factors of 36 are 2, 2, 3, and 3.The prime factors of 90 are 2, 3, 3, and 5.The prime factors in common are 2, 3, and 3, so the greatest common factor is 2 x 3 x 3 = 18.
What prime factors do 10 and 90 have in common?
They have the prime factors 2 and 5 in common.
What is the greatest common factor of 90 and 105?
The GCF of 90 and 105 is 5. The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, and 90. The factors of 105 are 1, 3, 5, 7, 15, 21, 35, and 105. The common factors are 1, 3, 5, and 15. Therefore, the greatest common factor is 15. The greatest common factor can also be determined from the prime factors, multiplying the common prime factors together. The prime factors of 90 are 2, 3, 3, and 5. The prime factors of 105 are 3, 5, and 7. The common prime factors are 3 and 5, so the greatest common factor is 3 x 5 = 15.
What is the greatest common factor of 18 54 90?
To find the greatest common factor (GCF) of 18, 54, and 90, we first need to find the prime factorization of each number. The prime factorization of 18 is 2 * 3^2, the prime factorization of 54 is 2 * 3^3, and the prime factorization of 90 is 2 * 3^2 * 5. To find the GCF, we identify the common prime factors among the numbers, which are 2 and 3^2. Therefore, the GCF of 18, 54, and 90 is 2 * 3^2, which equals 18.
What are the common prime factors of 19 and 90?
there are none, 19 is prime and it doesnt go into 90
What is the greatest common factor of 25 and 90?
The GCF of 25 and 90 is 5.One way to determine the greatest common factor is to find all the factors of the numbers and compare them.The factors of 25 are 1, 5, and 25.The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, and 90.The common factors are 1 and 5. Therefore, the greatest common factor is 5.The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.The prime factors of 25 are 5 and 5.The prime factors of 90 are 2, 3, 3, and 5.The prime factors in common are a single 5, so the greatest common factor is 5.5 is the GFC of 25 and 90
What is the greatest common factor of 12 and 90?
The factors of 12 are 1, 2, 3, 4, 6, and 12. The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, and 90. The common factors are 1, 2, 3, and 6, so the greatest common factor is 6. You can also determine this from the prime factors. The prime factors of 12 are 2, 2, and 3. The prime factors of 90 are 2, 3, 3, and 5. The prime factors they have in common are 2 and 3, so the greatest common factor is 2 x 3 = 6.
What is the least common factor of 54 and 90?
The factors of 54 are 1, 2, 3, 6, 9, 18, 27, and 54. The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, and 90. The common factors are 1, 2, 3, 6, 9, and 18. The least (smallest) common factor is 1. The smallest common prime factor is 2.
Is 1 the greatest common factor of 42 and 90?
No, it is 6. The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42. The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, and 90. The common factors are 1, 2, 3, and 6, so the greatest common factor is 6. You can also determine this by looking at the prime factors. The prime factors of 42 are 2, 3, and 7. The prime factors of 90 are 2, 3, 3, and 5. The prime factors they have in common are 2 and 3, so the greatest common factor is 2 x 3 = 6.
What is the greatest common factor of 42 and 90?
The GCF of 42 and 90 is 6.One way to determine the greatest common factor is to find all the factors of the numbers and compare them.The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42.The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, and 90.The common factors are 1, 2, 3, and 6.Therefore, the greatest common factor is 6.The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.The prime factors of 42 are 2, 3, and 7.The prime factors of 90 are 2, 3, 3, and 5.The prime factors in common are 2 and 3, so the greatest common factor is 2 x 3 = 6.
