explain why 3×5×7+5 is a composite number?
Answers
Answered by
1
Taking 5 common,
5(3×1×7 + 1)
Therefore the factors of 3×5×7+5 are 5,1,3×5×7+5 ,3×1×7+1
5(3×1×7 + 1)
Therefore the factors of 3×5×7+5 are 5,1,3×5×7+5 ,3×1×7+1
Prongs1:
as there are more than two factors therefore the number is composite
Answered by
2
→what is composite number?
★ number having more that two factors i.e other than 1 and itself is called a composite number.
for example,
4= 1,2,4
6= 1,2,3,6
the above mentioned numbers have more than two factors ,so they are composite number
→ 3 x 5 x 7 + 5
= 5(3 x 1 x 7 +1)
=5(21+1)
=5(22)
= composite number
( since, the given number has more than two factors)
__________
★ number having more that two factors i.e other than 1 and itself is called a composite number.
for example,
4= 1,2,4
6= 1,2,3,6
the above mentioned numbers have more than two factors ,so they are composite number
→ 3 x 5 x 7 + 5
= 5(3 x 1 x 7 +1)
=5(21+1)
=5(22)
= composite number
( since, the given number has more than two factors)
__________
Similar questions