31
factor tree of 216
2085370.
The prime factor tree of 280 is:140,270,2,235,2,2,27,5,2,2,2
Factor Tree of 20: ........20 ......../ \ .......4 5 ....../ \ .....2 2
155 5, 31
12 is not a factor of 155. The factors of 155 are 1, 5. 31 and 155.
155 is not a prime number, so it can't be a prime factor.
The greatest common factor of 155 and 217 is 31.
The Greatest Common Factor (GCF) of 155 and 350 is: 5
3755, 755, 25, 35, 5, 5, 3or3755, 755, 5, 155, 5, 5, 3
The prime factorization of 155 is 5 * 315x31
31 124=31x2x2 155=31x5
The only common factor is: 1
It is 1
It is: 1
1 and 5