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No, 39 isn't prime.
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What a the greatest common factor of 39 and 78?
Since 39 is a factor of 78, it is automatically the GCF.
What is the GCF of 39 78?
Since 39 is a factor of 78, it is automatically the GCF.
What is the greatest common factor of 13 39 52 and 78?
which pair of nummber has GCF that is a prime number 48 and 90 or 105 and 56?
How do you draw a factor tree of 78?
78 6 x 13 (2x3) x 13 The numbers 2, 3, and 13 are prime numbers, so the factor tree is complete. An alternate version of a factor tree for 78 is: 78 2 x 39 2 x (3x13)
What is the greatest common factor of 39 and 78?
The GCF is: 39
What is the largest prime factor of 78?
78 = 13 x 3 x 2 Therefore, the greatest prime factor of 78 is 13.
What is the greatest common factor for 39 and 78?
The greatest common factor is 5 * * * * * Actually, it is 39
Is 39 a prime factor or not?
Not.
Are 13 and 39 relatively prime?
No, 13 and 39 are not relatively prime. 13 is a factor of 39.
What is the greatest common factor of 39 26 and 78?
GCF(39, 78, 26) = 13.
What is the greatest common factor of 78 and 117?
The GCF of 78 and 117 is 39Factors of 78: 1 2 3 6 13 26 39 78Factors of 117: 1 3 9 13 39 117The GCF of 78 and 117 is: 39The GCF is 39.The GCF is 39.
How can you know if 6 is a factor of 78?
For a number to be divisible by 6, it has to be divisible by 2 and 3, because 2*3=6.In other words, we could divide the number we're factorising (78) by the prime factors of the number we're testing (6, which is 2*3). We start by dividing by 2, because we know 78 is even: 78/2=39. Then, we divide the new number by the other prime factor - 3. 39/3=13 13 is a whole number with no remainders, therefore we can say that 78 is divisible by 6, and therefore 6 is a factor of 78. (6*13=78)
