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It is 7 because it has only two factors which are itself and one
Toy Kiehn
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I need to know which pair of numbers in relatively prime 10 and 21 or 12 and 54 or 15 and 27 or 21 and 38?
hcf(10, 21) = 1 ⇒ 10 & 21 relatively prime hcf(12, 54) = 6 ⇒ 12 & 54 not relatively prime hcf(15, 27) = 3 ⇒ 15 & 27 not relatively prime hcf(21, 38) = 1 ⇒ 21 & 38 relatively prime
Is it possible to have a prime and triangular number result when you roll 4 dice?
First few triangular numbers: 0, 1, 3, 6, 10, 15, 21, 28 Numbers that can be thrown with four dice: 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 Which of these numbers that are triangular: 6, 10, 15, 21 None of these is prime.
What is a number that isn't a prime number?
1, 4, 6, 8, 9, 12, 14, 15, 16, 18, 20, 21, 22...
4x plus 6 equals 21 plus 3x?
x = 15 as 4*15+6 = 66 3*15+21 = 66 or an easier way to do it 4x - 3x = 1x 21 - 6 = 15 1x = 15
What is the next number in the number pattern 3 6 10 15?
21: (3)+3=(6)+4=(10)+5=(15)+6=(21)
What is the greatest common factor of 6 15 and 21?
The greatest common factor of 6, 15 and 21 is 3. The prime factorization of 6 is 2*3 The prime factorization of 15 is 3*5 The prime factorization of 21 is 3*7 The GCF is then 3, as it is the only common factor.
What is the prime number for 4 6 7 8 15 21?
It is 7 because it has only two factors which are itself and one
What are the six smallest keys that you can create by multiplying two different prime numbers?
They are 6, 10, 14, 15, 21, 22.They are 6, 10, 14, 15, 21, 22.They are 6, 10, 14, 15, 21, 22.They are 6, 10, 14, 15, 21, 22.
I need to know which pair of numbers in relatively prime 10 and 21 or 12 and 54 or 15 and 27 or 21 and 38?
hcf(10, 21) = 1 ⇒ 10 & 21 relatively prime hcf(12, 54) = 6 ⇒ 12 & 54 not relatively prime hcf(15, 27) = 3 ⇒ 15 & 27 not relatively prime hcf(21, 38) = 1 ⇒ 21 & 38 relatively prime
Is it possible to have a prime and triangular number result when you roll 4 dice?
First few triangular numbers: 0, 1, 3, 6, 10, 15, 21, 28 Numbers that can be thrown with four dice: 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 Which of these numbers that are triangular: 6, 10, 15, 21 None of these is prime.
What is a number that isn't a prime number?
1, 4, 6, 8, 9, 12, 14, 15, 16, 18, 20, 21, 22...
4x plus 6 equals 21 plus 3x?
x = 15 as 4*15+6 = 66 3*15+21 = 66 or an easier way to do it 4x - 3x = 1x 21 - 6 = 15 1x = 15
What is the next number in the number pattern 3 6 10 15?
21: (3)+3=(6)+4=(10)+5=(15)+6=(21)
What is -15 minus 6?
21
1 5 9 15 next number in series?
1, 5, 9, 15, ? 1, 5(1+4), 9(5+4), 15(9+6), ?(15+?) since the addition of 4 is done 2 times, we can say that also will 6 ?=15+6 ?=21
What is the prime number 4 6 7 8 15 21?
The prime number is 7, because the only factors for 7 are 1 and 7.
What date is not a prime number between 1 31?
4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30
