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Is the greatest common factor of an odd and even number always 1?
No, the GCF of an odd an even number is not always 1. Odd and even numbers can share factors other than 1. For example, the greatest common factor of 5 and 10 is 5.
How many whole numbers are factors 100?
1 + 2 + 4 + 5 + 10 + 20 + 25 + 50 + 100 = 217
Is 5 a factor of 196?
No. Any number where 5 is a factor will end in 5 or 0
Is 20 a factor of 24?
The factors of 20 are 1, 2, 4, 5, 10, and 20
Which of these statement are true 1 is a factor 0f 5?
1 is a factor of 5 which is a prime number
Does all numbers have an even number of factor?
No. Any square number has an odd number of factors e.g. 25 = 1, 25, 5
How can you tell by drawing a factor tree whether or not a number is a square number?
A factor tree tells you the prime factorization. The prime factorization can indicate a square number. Square numbers have even pairs of prime factors. 2 x 2 x 3 x 3 is a square number. 5 x 5 x 5 x 5 x 7 x 7 x 7 x 7 is a square number.
Is 51 a factor of 5?
The number 5 is an even factor of 50, but not of 51.
What is a number that is the product of a distinct factor multiplied by itself?
It is a square of that factor. E.g. 5 is a distinct factor of 25. If you multiply that distinct factor by itself (5*5) you get 25. A square comes from the x^2 notation and is any number which has a factor which is multiplied by itself.
What are 5 prime multiples and square numbers of 50?
25 is a square number that is a factor of 50 and a multiple of the prime number 5.
How can you tell by looking at the prime factors of 17640 that the square root of 17640 is not a whole number?
Write the prime factors as powers. In a square number, each prime number appears an even number of times - i.e., an even power. Examples: 4 = 22 (even power, this is a square) 144 = 24 x 32 (all powers are even, this is a square) 12 = 22 x 3 or 22 x 31 (3 has an odd power so it is not a square) (If a number is a perfect square, that is equivalent to saying that its square root is a whole number.) * * * * * In this case there is a particularly fast method. The number ends in 0 so 10 must be a factor of the number. That is to say, 2 and 5 must be prime factors of the number. If it is a square then 22 and 52 must be factors of the number ie 22 x 52 = 100 must be a factor. But if 100 is a factor, the number must end in 00. It does not so it cannot be a square.
How many factors do perfect square numbers have?
It depends what square number you're looking at. The square number 25 has only three factors (1, 5 and 25) but the square number 16 has 5 (1, 2, 4, 8 and 16.) A key point is that the factors don't pair up. There is always one middle factor that is the square root of the number and so cannot pair with any other factor. This means that all square numbers have an odd number of factors, while other numbers have an even number of factors.
Is the square root of negative 5 an integer?
No, it is not even a real number. The square root of negative 5 is the square root of 5, times i.
What is an even number and a multiple of 5 and a square number and a multiple of 9?
900
Does the number 5 always have to be in the middle of a magic square?
Think! What if the magic square had an even number of cells. There's your answer.
What number is a triangle number a square and an even number?
36 is a triangle number (1+2+3+4+5+6+8+9), a square (6*6) and an even number.
What is a multiple of 5 that is not a even number square number prime number?
15 is one possible answer.
