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What 2 numbers have the LCM of 30 and HCF of 1?
5 and 6
What two positive numbers have a HCF of 2 and a LCM of 30?
In order to have a LCM of 30, the two numbers must only have unique primes that multiply to give 30. 30 is the product of 2, 3 and 5. To have an HCF of 2, the two numbers must only share a factor of 2. Thus the factors of one must be 2 and 3, and the factors of the other must be 2 and 5: 2x3 = 6 2x5 = 10 Therefore the two numbers with an HCF of 2 and an LCM of 30 are 6 and 10. or 2 and 30
What are three pairs of numbers that have a LCM of 30 and a HCF of 1?
30 & 1. 15 & 2. 10 & 3.
Can 2 numbers have 16 as their HCF and 204 as their LCM?
No.
What 2 numbers have LCM of 20 and HCF of 2?
2 and 20 have an HCF of 2 and an LCM of 20. You could also use 4 and 10.
What 2 numbers have the LCM of 30 and the HCF of 3?
3 and 30.
Which 2 numbers have a HCF of 2 and a LCM of 30?
6 and 10 2x3=6 2x5=10 HCF=2 LCM=30
What 2 numbers have the LCM of 30 and HCF of 1?
5 and 6
What two positive numbers have a HCF of 2 and a LCM of 30?
In order to have a LCM of 30, the two numbers must only have unique primes that multiply to give 30. 30 is the product of 2, 3 and 5. To have an HCF of 2, the two numbers must only share a factor of 2. Thus the factors of one must be 2 and 3, and the factors of the other must be 2 and 5: 2x3 = 6 2x5 = 10 Therefore the two numbers with an HCF of 2 and an LCM of 30 are 6 and 10. or 2 and 30
How do you find sets of two numbers if HCF and LCM are known?
You cannot. The numbers 2 and 12 have hcf = 2 and LCM = 12 The numbers 4 and 6 also have hcf = 2 and LCM = 12 So if you just knew the hcf and LCM you would not know which of the two was the required pair.
What are three pairs of numbers that have a LCM of 30 and a HCF of 1?
30 & 1. 15 & 2. 10 & 3.
What is the hcf and LCM of 14 and 30?
hcf(14, 30) = 2 lcm(14, 30) = 210 14 = 2 x 7 30 = 2 x 3 x 5 hcf = 2 lcm = 2 x 3 x 5 x 7 = 210
What two numbers have the LCM of 30 and a HCF of 1?
2 and 15 3 and 10 5 and 6
Can 2 numbers have 16 as their HCF and 204 as their LCM?
No.
If the HCF and LCM of two numbers are 17 and 102 respectively and the HCF and LCM of two other numbers are 68 and 476 respectively then find the sum of the HCF and LCM of these four numbers?
HCF of 17 and 68 is 17 ..( Lowest Prime factor ) LCM Of 102 and 476 is 7*2^2*3*17 which is 1428 .. ==> Sum of HCF and LCM are 1428+17= 1445 .
What 2 numbers have a LCM of 12 and a HCF of 2?
2 and 12
What 2 numbers have LCM of 20 and HCF of 2?
2 and 20 have an HCF of 2 and an LCM of 20. You could also use 4 and 10.
