The least common multiple of the numbers 31 and 7 is 217.
The greatest common factor of 155 and 217 is 31.
Their product.
432
91,140
2085370.
310
31. Factor each number: 62 = 2 x 31 217 = 7 x 31 155 = 5 x 31. The only factor that is common to all three numbers (and thus, the greatest common factor) is 31.
Oh, what a happy little math problem we have here! To find the greatest common factor of 217, 93, and 155, we can start by finding the factors of each number. Then, we look for the largest number that is a factor of all three - that's our greatest common factor! Just like painting a beautiful landscape, with a little patience and attention to detail, we can find the answer together.
In Mathematics there is eitherthe Highest Common Factororthe Least Common MultipleThe Highest Common Factor involves prime factors, and finding which are shared by the numbers under consideration....the prime factors of 91 are 7 and 13the prime factors of 217 are 7 and 31So, the Highest Common Factor of 91 and 217 is 7.The Least Common Multiple also involves prime factors, and multiplying all of them together, only using once any which are common to both numbersAs the only shared prime factor is 7 we need to multiply 7, 13 and 31 together - which gives 2,821.
The least common factor of any set of integers is 1.
The greatest common factor of 91 and 217 is 7 (and the lowest common multiple is 2,821)The factors of 91 are: 1, 7, 13, 91The factors of 217 are: 1, 7, 31, 217The common factors are: 1, 7The Greatest Common Factor (GCF) is: 7The Greatest Common Factor (GCF) is: 7