2 is a factor of 72. (36*2)
1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
2,4,6,8,9,12,18, 24,36,72
Since 24 is a factor of 72, all of its factors are common.
1,2,3,4,6,8,9,12,18,24,36,72 factor of 72 1,3,9,27,and 81 is factor of 81
2 is a factor of 72. (36*2)
33 is not a factor of 72.
1, 4, 6, 8, 9, 12, 18, 24, 36, 72.
3 is a prime factor of 72 and is contained in the prime factorization.
4, 6, 8, 9, 12, 18, 24, 36, 72
1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
Well, let's see. I'm sure you know how to test a number to decide whether it's composite ... You try to find any other factor besides ' 1 ' and the number itself, and if you find even one more factor, then the number is composite. So let's get together and test 72 : The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, and 72. I guess we did find another factor after all, d'ya reckon ? Actually, we found 10 of them ! So 72 is definitely composite.
4, 6, 8, 9, 12, 18, 24, 36, 72
72 is a composite number. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.
4, 6, 8, 9, 12, 18, 24, 36, 72
By multiplying 2 and 3.
Choose from among 4, 6, 8, 9, 12, 18, 24, 36, 72