10 and 15
The LCM of two numbers is sometimes the product of the two numbers.
By finding out whether they have any factors in common. If the only factor they have in common is 1, the LCM will be their product. If they have more factors in common, their LCM will be less than their product.
If the two numbers have no common factors other than 1, the LCM will be their product. If there are other common factors, the LCM will be less.
To find the LCM, you multiply the numbers together and then divide by the HCF. In this case, we don't know the numbers, but we have the HCF (13) and we have the product of the numbers (1690). Thus all you do is divide 1690 by 13 to get: 1690/13 = 130 And thus the LCM of two numbers whose hcf is 13 and product is 1690 is 130.
One way to check: The product of the original two numbers is equal to the product of their GCF and LCM. If you divide that product by their GCF, you will get the LCM.
The GCF of two numbers multiplied by their LCM will equal the product of the original numbers. If you know the GCF, divide it into the product of the two. The result will be the LCM. If the GCF of two numbers is 1, the LCM is their product.
The LCM of two numbers multiplied by their GCF will equal the product of the original numbers. If you know the LCM, divide it into the product. The result will be the GCF.
If the GCF is 1, the LCM is the two numbers multiplied together.
If two numbers have no common factor greater then one, then their LCM is the two numbers multiplied together. Example: 9 and 14 have no common factors. Their LCM is 9 x 14, which is 126.
The GCF is 1. That means the LCM is the two numbers multiplied together, or 210.
The LCM of any two consecutive numbers greater than zero is the two numbers multiplied together. eg. the LCM of 10 and 11 is: 10*11=110
Numbers that are relatively prime have their LCM as their product.
The product of the GCF and LCM of a pair of numbers is equal to the product of the numbers.
The Least Common Multiple (LCM) of two prime numbers is the product of the two prime numbers. This is because prime numbers only have themselves and 1 as factors, so their LCM is simply their product.
105 is the product of 15 and 7 since 15 x 7 = 105. As 15 and 7 have no common factor except 1, their lowest common multiple is when they are multiplied together, that is 105. The LCM of any two numbers is their product divided by their highest common factor.
The product of the GCF and the LCM is the same as the product of the original two numbers. Divide the product of the original numbers by the GCF. The result will be the LCM.
The product of the GCF and LCM is equal to the product of the original two numbers.