10, 20, 30, 40, 50, 60, 70, 80, 90
467 is already prime. No factorization is required.
Well, well, well, look at you trying to stump me. The prime numbers less than 30 that multiply to 1955 are 5, 13, and 31. Yep, you heard me right, 31 is not less than 30, but it sure is a prime number that gets the job done.
If the GCF of a given pair of numbers is 1, the LCM will be equal to their product. If the GCF is greater than 1, the LCM will be less than their product. Or, stated another way, if the two numbers have no common prime factors, their LCM will be their product.
4, 9, 25 and 49 They are squares of prime numbers.
The prime factors of 105 can only be prime numbers less than the square root of 105. The greatest prime less than the square root of 105 is 7, so the only numbers that need to be considered as possible prime factors of 105 are 2, 3, 5, and 7. 2 cannot be one of its prime factors because 105 is an odd number. Divide 105 by the next larger possible prime, 3, and the quotient is 35, proving that 3 is a prime factor of 105. 35 cannot be divided by 3, but 5 goes into 35 leaving a quotient of 7. The prime factorization of 105 is 3 x 5 x 7.
10, 20, 30, 40, 50, 60, 70, 80, and 90.
10, 20, 30, 40, 50, 60, 70, 80, 90
No
All the even numbers and the odd multiples of 5.
THey are 10, 20, 30, 40, 50, 60, 70, 80 and 90.
467 is already prime. No factorization is required.
The prime factorization of the LCM will contain all the prime factors of the two original numbers. When the original numbers don't have any prime factors in common, (the GCF is 1) the LCM will be their product. When the two original numbers have prime factors in common (the GCF is 2 or more) the duplicates will be discarded and the LCM will be less than their product.
2,3,5,7,11,13,17,19,23,and 29
59 - 2 = 57
19 - 2 = 17
97-2=95 The answer is 95