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Is a composite number times a composite number always composite?
Yes. To be composite, the first number has at least 2 prime factors, the second number also has at least prime factors; the product of the two will have at least 4 prime factors, so it must be a composite number.
What is the smallest number that has 4 different prime factors?
The smallest prime factors are 2,3,5,7 thus the smallest number would be the product of these will be 210
Which of these is a prime number 4 10 3?
Three is the prime number. Both 10 and 4 have factors other than themselves.
Prime numbers 3 10 or 4?
a prime number has no factors other than one and itself 4:1,2,4 10:1,2,5,10 3:1,3 3 is the prime number!!!! it's only factors are one and itself!!!!
Is 8 a prime number?
NO. 8 is not a prime number because it has other factors aside from 1 and itself.The other factors of 8 are 2 and 4, thus 8 is a composite number .4 x 2 = 8No, 8 is divisible by 1, 2, 4 & 8 so this is not a prime number.
Does any 3 digit number repeated to make a 6 digit number have to have at least 4 prime factors ex 359359 If yes then is there any pattern on how to figure that out?
abcabc=abc x 1001 1001 = 7 x 11 x 13 So such number as at least 4 prime factors: if abc is prime, then 4 factors only if abc is not prime then at least 4 factors
Is a composite number times a composite number always composite?
Yes. To be composite, the first number has at least 2 prime factors, the second number also has at least prime factors; the product of the two will have at least 4 prime factors, so it must be a composite number.
Must a composite number have at least two different prime factors?
No, 4 has one prime factor.
What is the least number that has 4 different prime factors?
Logically, the smallest number with 4 different prime factors would have to be the product of the smallest four prime numbers. So the smallest natural number with four different prime factors is 210 (2*3*5*7).
How many factors does a negative prime number have?
a negative prime number has 4 factors
Is 295 a prime number?
295 is not a prime number because it has a factor of 5, while prime numbers only have factors of itself and 1. 295 can be divded by 5, giving it at least 4 factors, and thus disqualifies it from fitting the definiton of a prime number.
Can a prime number have 4 factors?
No, a prime number has exactly two factors: 1 and itself.
Is there a prime number that is a multiple of 21?
No, it is not possible. Every multiple of 21 is a composite number. 21 is a composite number and its factors are 1, 3, 7 and 21(4 factors). Any multiple of 21 must have all the factors of 21. So, every multiple of 21 has at least 4 factors. And a prime number has only two factors so, any multiple of 21 can't be prime.
What are the factors of 4 and is it prime or composite?
The factors of 4 are 1, 2, and 4. The only prime factor of 4 is 2. The factors of 20 are 1, 2, 4, 5, 10, and 20. The prime factors of 20 are 2x2x5.
Is 3 and 4 prime or composite?
Three is prime, because the number 3 only has 2 factors 1 and itself and the number 4 has 3 factors 1,2, and 4 (you can tell if a number is prime when it has 2 factors and if a number has more than 2 it is composite)
What is the least number that has 2 and 3 and 4 as factors?
The least number that has 2, 3, and 4 as factors is 12.
What is the least common denominator of 143 and 208?
To find the least common denominator of 143 and 208, we need to first find the prime factors of each number. The prime factors of 143 are 11 and 13, while the prime factors of 208 are 2, 2, 2, 2, 13. The least common denominator is the product of all the prime factors with the highest power present in either number, which is 2^4 * 11 * 13 = 1144. Therefore, the least common denominator of 143 and 208 is 1144.
