Explain why 31xx17xx13xx12+31xx17xx5 a composite number.
How will you show that (17xx11xx2)+(17xx11xx5) is a composite numbers ? Explain.
Explain why 7xx 11 xx 13 and 7 xx 6 xx 5 xx 4 xx 3 xx 2 xx 1 +5 are composite numbers.
How will you show that 41xx17xx61xx3+41xx17xx31xx5 is a composite number? Explain.
Explain why 7xx11xx13+13 and 7xx6xx5xx4xx3xx2xx1+5 are composite nubmers.
How do you say 7xx11xx13+13 and 7xx6xx5xx4xx3xx2xx1+5 are composite numbers? Explain it.
How will you show that (31xx37xx41xx3)+(31xx37xx41xx5) is a composite number? Explain (Hint: A composite number can be factorised as the product of primes.)
A = {x:x in N x is the composite number and x lt13 }. Where set A is the roster form.
Is 7xx5xx3xx2+3 a composite number ? Justify your answer.
